Using your Met Echo Mips MTB Helmet is easy. First, put it on your head and adjust the Safe - T Mid Fit System until it feels comfortable and secure. You can also adjust the cam navider to get the perfect fit. The removable visor can be taken off if you don't need it or if you want to clean it. When riding, make sure the helmet is firmly in place to ensure maximum protection. As for maintenance, simply remove the hand - washable comfort pads and wash them regularly to keep the helmet hygienic. Don't use harsh chemicals on the helmet. Store it in a cool, dry place when not in use. If the helmet is involved in a significant impact, replace it immediately as its protective properties may be compromised.